以下代码爬取某gbk编码网站会显示中文为乱码，求调

# -*- coding: gbk -*-
import requests as r
headers = {
    'Accept-Encoding': 'gbk',
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36 Edg/94.0.992.47"
}
index = r.get("https://www.xkjxw.com/8/8577/3638073.html", headers=headers)
print(index.text)